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* = Original cosponsor
CosponsorDate Cosponsored
Sen. Cardin, Benjamin L. [D-MD]* 04/18/2012
Sen. Mikulski, Barbara A. [D-MD]* 04/18/2012
Sen. Warner, Mark R. [D-VA]* 04/18/2012
Sen. Webb, Jim [D-VA]* 04/18/2012